SEASONAL INCIDENCE, CROP LOSS ASSESSMENT AND ECO-FRIENDLY MANAGEMENT OF APHIDS (Aphis nerii Boyer de Fonscolombe) ON BEDKI (Gymnema Sylvestre R. Br)
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Date
2024
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MPKV, Rahuri
Abstract
Aphids, Aphis nerii Boyer de Fonscolombe (Hemiptera) is major pest of Bedki (Gymnema sylvestre R.Br.) in India. The seasonal incidence, avoidable yield loss assessment and management of aphids were studied at AICRP on MAP and Betelvine, MPKV, Rahuri during 2022-23. The experiment on management studies was laid out in Randomized Block Design (RBD) with three replications and seven treatments for evaluation of plant products and biopesticides against aphids.
Correlation between aphid population and weather parameters indicated significant negative correlation with rainfall. The non significant positive correlation with maximum temperature and both morning and evening relative humidity. The non significant negative correlation with minimum temperature.